Understanding and Treating Discoloration of Excavator Oil Cylinders

Many excavator customers have encountered the issue of oil cylinder discoloration, often mistakenly assuming it's miles related to the cylinder's great. However, the discoloration is commonly not a problem with the cylinder itself. In this article, we are able to delve into the causes of oil cylinder discoloration and offer remedy strategies to deal with this phenomenon effectively.

Understanding Discoloration:

When an oil cylinder seems black, blue, or pink, it's miles crucial to note that the color alternate is not happening within the cylinder itself. Instead, it's miles as a result of a thin layer of colored film forming at the cylinder's surface. Therefore, the discoloration is unrelated to the cylinder's best or integrity.

High Temperature Exposure: During operation, the piston rod can reach high temperatures, mainly while uncovered to surprising drops in temperature, consisting of in cold weather conditions.

Incompatible Hydraulic Oil: If hydraulic oil from a distinct logo, now not particularly designed for excavators, is used during upkeep, the piston rod may also display discoloration within a few days. This is because of the versions in quality and performance of extreme stress anti-put on components found in hydraulic oil.

Oil Seal and Hydraulic Oil Additives: The blue discoloration at the cylinder is often as a result of components from the oil seal and hydraulic oil adhering to the rod at excessive temperatures. On the opposite hand, the blackening may also result from lead-containing components in the spray in the cup (wear-resistant sleeve) connected to the cylinder. This phenomenon is generally related to excessive hydraulic oil temperatures, and it's far extra common in regularly used the front bucket cylinders. Regular cleaning of the radiator location is suggested to make certain efficient warmth dissipation.

Treating Oil Cylinder Discoloration:

Minor Discoloration: If only a small location of the cylinder seems blue, it's far generally safe to disregard it because it will certainly fade away through the years.

Severe Discoloration: In cases of extensive discoloration, it is beneficial to replace the oil seal and wear-resistant sleeve. Additionally, efforts ought to be made to decrease exposure to high hydraulic oil temperatures. With time, the discoloration will usually diminish.

Conclusion:

Discoloration of excavator oil cylinders is a common incidence that is regularly misunderstood as a exceptional issue. It is important to apprehend that the discoloration is caused by a colored movie forming at the cylinder's floor and no longer by way of any inherent problems with the cylinder itself. By expertise the reasons of discoloration and following suitable remedy methods, such as replacing worn additives and controlling hydraulic oil temperatures, excavator customers can successfully deal with this phenomenon. Remember to consult manufacturer hints and seek professional assistance when vital to make sure ideal overall performance and durability of the oil cylinders.